Friction-Ring Stem Caster Swivel Caster 75 lb Load Rating 0 to 299 lb 2 1/8 in Wheel Dia Urethane Wheel/Tread Material 2 1/4 in Mounting Height Plain 7/16 in x 7/8 in Caster Stem Size Friction Ring Nylon Caster Frame Material No Finish Frame Finish Yes Non-Marking 2 Number of Wheels